2154043103 has 4 divisors (see below), whose sum is σ = 2154743520. Its totient is φ = 2153342688.

The previous prime is 2154043093. The next prime is 2154043109. The reversal of 2154043103 is 3013404512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2154043103 - 2⁶ = 2154043039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154043109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345575 + ... + 351752.

It is an arithmetic number, because the mean of its divisors is an integer number (538685880).

Almost surely, 2^2154043103 is an apocalyptic number.

2154043103 is a deficient number, since it is larger than the sum of its proper divisors (700417).

2154043103 is an equidigital number, since it uses as much as digits as its factorization.

2154043103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700416.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2154043103 is about 46411.6699010066. The cubic root of 2154043103 is about 1291.4714101874.

Adding to 2154043103 its reverse (3013404512), we get a palindrome (5167447615).

The spelling of 2154043103 in words is "two billion, one hundred fifty-four million, forty-three thousand, one hundred three".